Mobile phone bumper



FIG. 1 is a front elevation view of a mobile phone bumper showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a left side elevation thereof;

FIG. 4 is a right side elevation thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a partial cross-sectional view through line 7-7 in FIG. 1; and,

FIG. 8 is a partial cross-sectional view through line 8-8 in FIG. 3. 

CLAIM The ornamental design for a mobile phone bumper, as shown and described. 